Justification-indicating mechanism for composing-machines.



J. S. BANCROFT & J. 0. HOFBERG.

JUSTIHCATION INDICATING MECHANISM FOR COMPOSING MACHINES.

APPLICATION man JULY 22. 1916.

1,256,765. Patented Feb. 19, 1918.

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.lUSTJF'lCAT-ION INDICATING MECHANISM FOR COMPOSING MACHINES.

APPLICATION man sun 22. I916.

1,256,765. Patented Feb'.19,1918.

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PATENT @FFEZUR JOHN SELLERS nnnonor'r, or riirLannLri-iia, zenniisrnvanrn, AND JOHN oLor HOFBERG, OF WES'IVILLE, NEW JERS- ASSIGNOBS T0 LAN-STON MONOTYPE MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CGEPORATION 0F VIRGINIA.

1,256,765. Specification of Application filed July 22, 1918.

To all whom it may concern:

Be it known that we, JOHN SELLERS Banonor'r and JOHN OLoF Hornnne, citizens of the United States, and residents, respectively, of Philadelphia, county of Philadelphia, State of Pennsylvania, and of Westville, county of Gloucester, State of New Jersey, have invented certain new and useful Improvements in Justification Indicating Mechanism for Composingvlachines; and we do hereby declare the following to be a full, clear, and exact description of the same when taken in connection with the accompanying drawings, forming part of this specification.

This invention relates to improvements in justification indicating mechanism for typographic composing n. achmes such as those of the class of United State Patent No. 9%,405, dated December 28, 1909, and has for its general object, in which it is comparable with the improvement of said patent set forth in United States Patent No. 1,149,176, dated August 10, 1915, to provide a justification indicating mechanism driven by a motor separate from that driving the line measuring mechanism but active to follow up the controlling movements of said line measuring mechanism. In the last mentioned patent the driving means for the indicator mechanism is in the form of a spring connected at one end with a vertically slidable weight and at the other end with a cord which passes from the spring over suitably arranged pulleys and is finally wrapped about the shaft of the justification indicating drum. This device is eminently satisfactory in its operation but has the disadvantages particularly of taking up more space about the machine than is desirable, of being composed of several elements requiring adjustment and repair, as well as other attention on the part of the operator, and of distracting and causing annoyance to the operator owing to the fact that the weight element vibrates and dances up and down considerably after the rotation of the drum has been arrested and the cord has become taut.

It is more particularly the object of the present invention to provide a justification indicating mechanism which, while possess- Letters Patent.

Patented Feb. 19, 1918.

Serial No. 110,682.

ing all of the advantages of the device f said last mentioned patent, is free from the disadvantages thereof. This is accomplished, generally speaking, by providing an air motor operating to rotate the justification drum when the line measuring devices have entered the justification area and have overcome the elastic res stance of the abutment slide return motor opposing the operation of the justification drum motor. The abutment slide return motor is preferably in the form of a pneumatic motor of greater power than the motor for operating the justification indicating device the cylinders of both motors being at all times in open communication with each other.

The invention will be more clearly understood by referring to the accompanying drawings illustrating an embodiment of the invention as applied to a keyboard composing machine of the general type shown in Patent No. 944,405, above ment oned, and to the following description of said drawings, in which Figure 1 is an end elevation of a keyboard machine with parts broken away;

Fig. 2 is a perspective showing the relative locations of certain of the motor, gaging and associated elements;

Fig. 3 is horizontal section passing through the justification drum motor cylinder; and

Fig. i is a vertical section through the line measuring motor cylinder.

It is not necessary, in describing the present invention to present a detailed description of the composing machine fully set forth in Patent No. 94:4,405. It is sufficient for present purpose to designate and iden-' tify some of the parts of such machine shown in Fi 1, particularly those which are operatively or otherwise involved with the mechanism of the present invention, for example, the key 180 operating through pneumatic means Certain of the punch bar levers 17 and punch bars 15; the stop bars 13 on the outer ends of the levers 41 each operated from a dimensioning punch bar- 15 through a lever 20 and a vertically movable bar 4E0; the units rack 11 slidable in the units rack carrier 42 operated from a punch bar 15 through the intermediary of the universal bar 19, the shaft 34:, the arm 50, rod 51, lever 52 and lever 53; the units wheel 7 driven by air under pr ssure in the motor cylinder 4 acting against the piston d which piston carries the motor rack 6 meshing with the pinion 6, secured to the units wheel shaft; and the line scale pointer 14, carried by the line scale rack let in mesh with the line scale pinion 7, also secured to the units wheel shaft. The above designated elements include the line measuring mechanism of the patented machine referred to and, in order to assist in the easy identification of said elements, they are indicated in general by the same reference characters as are found in said patent.

The justification indicator drum 8 according to the presentinvention is operated by mechanism quite different from that of the patent but to some extent the same as that of the improvement Patent No. 1,149,176 already referred to. The drum is controlled by an abutment slide 9, and a cooperating gaging member 9 having rack teeth on the side thereof and connected with the drum through gearing including the pinion 10 meshing with said rack teeth and is operated by a pneumatic motor also connected with said pmi on 10. One end of the gaging member is supported in the bearing 11 in the supporting frame and the other end in the cylinder 12 also in the supporting frame.

Riding within cylinder 12 is a plston 13 the inner end of the, rod 1 1 of which is guided in the gaging member 9 and is held under elastic pressure against the arm 15 of theabutment slide 9, said arm extending through an elongated opening 16 in the gaging member and, said abutment slide being slidably supported upon the upper surface of the rack 6.

The cylinder 12 is connected with the air pressure supply through pipe 17. Supported in bearings in the gaging member 9 in position to be normally in engagement with, the abutment slide 9, and disposed in opposition to piston rod 14 is a follower or pin 19 provided with a shoulder 20 adapted to engage an adjustable sleeve or bearing 21 carried by the member 9. The pin 19 eX- tends beyond the member 9 in position to engage a stop or bearing 22 on the frame. By manipulating the sleeve 21 the follower 19 maybe adjustably positioned relatively to the gaging member whereby the justifica tion indicating drum may be setv in proper relation to the abutment member.

The pinion 1O meshes at diametrically opposite points with the rack teeth of the gaging member 9 and the rack teeth of the piston element 23 the piston head 24 of which operates in a cylinder 25 formed in the frame of the machine parallel with the cylinder. 12 butof less diameter than said member 9 in the position in which the rod 1.9 is in engagement with the stop 22. The air under pressure in cylinder 25 tends to move the piston 2e and the gearing 10 so as to displace those parts from such position but is not capable of doing so because the area of the piston 24 is les than that of the piston 13, the latter being, therefore, the more powerful. lVhen the operation of the composing mechanism has advanced so far in the composition and measurement of a line as to bring the piston d of the measuring mechanism driving motor into contact with the abutment slide 9, the position of the parts correspond with the beginning of or entrance to the justification area (Fig. a). In this position the justification drum should be in its retracted or zero position to which it may be adjusted by turning the sleeve 21. Further move ment of the motor piston t, advances the abutment slide 9, and the piston 13 against the opposing force exerted by the air under pressure in cylinder 12, which opposing force is overcome by the greater force exerted by the piston 41-, the area of which is greater than that of the piston 13. The

piston 13 having been moved and held ina new location, there is no longer any opposition to the movement in the same direction of the follow-up device comprising the gaging member 9 and the rod 19 and this is accomplished by the pressure in cylinder 25 causing the piston 2 1 to move and thus operate the common gear 10 meshed with the rack teeth of said gaging member; such follow-up m vement is, of course, stopped when the rod 19 comes against the arm 15 of the abutment slide 9. The operation of the gearing 10 also causcs'the justificm tion drum to more to a position indicating the proper justification for completing the measure.

The movement of the gaging member 9 is wholly accomplished by the justification motor 2 1, 25 which operates after the more powerful abutment slide return motor 12, 13, has been displaced. The motor piston a may, therefore, proceed into-and through a desired portion of the justification area-at a high speed without having any deleterious efiect upon the operation of the drum. Moreover, the follow-up movement of the gaging member is quick and positive and is not accompanied by vibrations or unsteadiness of the drum or of any part of its driving mechanism.

IVhen it is desired to return or restore the line measuring mechanism by admitting pressure to the motor return cylinder 5 in the usual manner, the indicator actuating device, and the abutment slide will likewise be returned to initial or starting position by the superior pressure of piston 13.

By the employment of a pneumatic motor for advancing the justification indicator to indicate justification necessary for completing the line the weight of the parts may be reduced and the consequent disturbing effects of inertia and momentum, as well as rhythmic vibrations of the parts are practically overcome.

What is claimed is,

1. A typographic composing machine such as described, embodying the following instrumentalities, to-wit: a justification indicator, a pneumatic motor for advancing the indicator to indicate j ustification necessary to complete the line, line measuring mechanism, an abutment moved by the line measuring mechanism for limiting the advance movement of the indicator under the influence of its pneumatic motor and an elastic resistance device tending to maintain the abutment against movement.

2. In a typographic composing machine such as described, including line measuring mechanism and a justification indicator and in combination therewith, an abutment slide adapted to be advanced by the line measuring mechanism, a return device for said abutment slide, a follow up device and an air pressure motor for operating said j ustification indicator and causing said follow up device to follow the advance movements of said abutment slide.

3. In a typographic composing machinesuch as described, including line measuring mechanism and a justification indicator, and in combination therewith, an abutment slide adapted to be engaged and advanced by the line measuring mechanism, a return device for said abutment slide acting in a direction opposite to that of the advance of said abutment slide, a follow up device normally in engagement with said abutment slide and an air pressure motor for operating said justification indicator and causing said follow up device to follow the advance movements of said abutment slide.

-t. In a typographic composing machine such as described, comprising line measuring mechanism, a justification indicator, an abutment slide adapted to be advanced by said line measuring mechanism, an abutment slide return device acting in a direct-ion opposite to that of the advance of said abutment slide, a follow up device, and in combination therewith means for operating said follow up device and said justification indicator, said means comprising an air pressure motor the piston of which is operatively connected with said follow up device and with said indicator.

In a typographic composing machine such as described, comprising line measuring mechanism, a justification indicator, an abutment slide adapted to be advanced by said line measuring mechanism, an air pressure abutment slide return motor, a follow up device and in combination therewith, means for operatin said follow up device and said justification indicator, comprising an air pressure motor, the piston of which is operatively connected with said follow up device and with said justification indicator.

6. In a typographic composing machine such as described, comprising line measuring mechanism, a justification indicator, an abutment slide adapted to be advanced by said line measuring mechanism, an air pressure abutment slide return motor, a follow up device and in combination therewith, means for operating said follow up device and said justification indicator, comprising an air pressure motor, the piston of which is operatively connected with said follow up device and with said justification indicator, the cylinder of said last mentioned motor being in open communication with the cylinder of said abutment slide return motor.

7. In a typographic composing machine such as described, comprising line "ieasuring mechanism, a justiiication indicator, an abutment slide adapted to be advanced by said line measuring mechanism, an air pressure abutment slide return motor acting in a direction opposite to that of the advance of said abutment slide, a follow up device connected with said justilication indicator, and in combination therewith, means for operating said follow up device, comprising an air pressure motor, the piston of which is operatively connected with said follow up device, the cylinder of said last mentioned motor being in open communication with the cylinder of said abutment slide return motor.

8. In a typographic composing machine such as described comprising a justification indicator and measuring mechanism including an air pressure line measuring motor and in combination therewith, an abutment slide adapted to be engaged and moved by means of said. line measuring motor, an air pressure abutment slide return motor acting against said abutment slide in a direction opposite to that of the line measuring motor, said abutment slide return motor being of less power than the line measuring motor, a follow up device normally in engagement with said abutment slide, and an air pressure justification indicator motor of less power than the abutment slide return motor, for operating said justification indicator and for causing said follow up device to follow the abutment slide when moved by said line measuring motor.

9. In a typographic composing machine such as described, comprising a justification indicator and measuring mechanism including an air pressure line measuring motor and in combination there-With, an abutment slide adapted to be engaged and moved by means of said line measuring motor, an air pressure abutment slide return motor acting against said abutment slide in a direction opposite to that of the line measuring motor. said abutment slide'return motor be ing of less power than the line measuring motor, a "Follow up device normally in engagement With said abutment slide, and an air pressure justification indicator motor of less power than the abutment slide return motor, for operating said justification indicator and for causing said follow up device to follow the abutment slide when moved by said line measuring motor, the cylinder of said ustification indicator motor being at all times in open communication with the cylinder of said abutment slide return motor.

10. In a typographic composing machine such as described, comprising line measuring mechanism, a justification indicator, an abutment slide movable by said line measuring mechanism, an abutment slide return device acting in a direction opposite to that of the line measuring mechanism, a follow up device provided With a rack, and, in combination therewith, means for operating said follow up device and said justification indicator, said means comprising an air pressure motor including a piston, a rack driven by said piston and gearing connected With said just-ification indicator, said gearing including a pinion common to said two racks.

JOHN SELLERS BANGROFT. JOHN OLOF HOFBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G 

